feat(global): add macros for GPIO->channel lookup

including: macros for dac, adc, touch, rtc_gpio, uart and clk_out.

TW#13970

components/soc/esp32/include/soc/adc_channel.h

@@ -0,0 +1,72 @@
+// Copyright 2010-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef _SOC_ADC_CHANNEL_H
+#define _SOC_ADC_CHANNEL_H
+
+#define ADC1_GPIO36_CHANNEL     ADC1_CHANNEL_0
+#define ADC1_CHANNEL_0_GPIO_NUM 36
+
+#define ADC1_GPIO37_CHANNEL     ADC1_CHANNEL_1
+#define ADC1_CHANNEL_1_GPIO_NUM 37
+
+#define ADC1_GPIO38_CHANNEL     ADC1_CHANNEL_2
+#define ADC1_CHANNEL_2_GPIO_NUM 38
+
+#define ADC1_GPIO39_CHANNEL     ADC1_CHANNEL_3
+#define ADC1_CHANNEL_3_GPIO_NUM 39
+
+#define ADC1_GPIO32_CHANNEL     ADC1_CHANNEL_4
+#define ADC1_CHANNEL_4_GPIO_NUM 32
+
+#define ADC1_GPIO33_CHANNEL     ADC1_CHANNEL_5
+#define ADC1_CHANNEL_5_GPIO_NUM 33
+
+#define ADC1_GPIO34_CHANNEL     ADC1_CHANNEL_6
+#define ADC1_CHANNEL_6_GPIO_NUM 34
+
+#define ADC1_GPIO35_CHANNEL     ADC1_CHANNEL_7
+#define ADC1_CHANNEL_7_GPIO_NUM 35
+
+#define ADC2_GPIO4_CHANNEL      ADC2_CHANNEL_0
+#define ADC2_CHANNEL_0_GPIO_NUM 4
+
+#define ADC2_GPIO0_CHANNEL      ADC2_CHANNEL_1
+#define ADC2_CHANNEL_1_GPIO_NUM 0
+
+#define ADC2_GPIO2_CHANNEL      ADC2_CHANNEL_2
+#define ADC2_CHANNEL_2_GPIO_NUM 2
+
+#define ADC2_GPIO15_CHANNEL     ADC2_CHANNEL_3
+#define ADC2_CHANNEL_3_GPIO_NUM 15
+
+#define ADC2_GPIO13_CHANNEL     ADC2_CHANNEL_4
+#define ADC2_CHANNEL_4_GPIO_NUM 13
+
+#define ADC2_GPIO12_CHANNEL     ADC2_CHANNEL_5
+#define ADC2_CHANNEL_5_GPIO_NUM 12
+
+#define ADC2_GPIO14_CHANNEL     ADC2_CHANNEL_6
+#define ADC2_CHANNEL_6_GPIO_NUM 14
+
+#define ADC2_GPIO27_CHANNEL     ADC2_CHANNEL_7
+#define ADC2_CHANNEL_7_GPIO_NUM 27
+
+#define ADC2_GPIO25_CHANNEL     ADC2_CHANNEL_8
+#define ADC2_CHANNEL_8_GPIO_NUM 25
+
+#define ADC2_GPIO26_CHANNEL     ADC2_CHANNEL_9
+#define ADC2_CHANNEL_9_GPIO_NUM 26
+
+#endif